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| author | Peter Hurley <peter@hurleysoftware.com> | 2016-04-09 17:53:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 09:26:55 -0700 |
| commit | 80f02d5424301bf4df195d09b1a664f394435851 (patch) | |
| tree | 8bfff4fbf3685f767fa776dbd7ae58a63420acd3 /include/linux/tty.h | |
| parent | 2d68655d15bc99981394f7caa769a14b03cac131 (diff) | |
| download | linux-80f02d5424301bf4df195d09b1a664f394435851.tar.gz linux-80f02d5424301bf4df195d09b1a664f394435851.tar.bz2 linux-80f02d5424301bf4df195d09b1a664f394435851.zip | |
tty: Replace ASYNC_SUSPENDED bit and update atomically
Replace ASYNC_SUSPENDED bit in the tty_port::flags field with
TTY_PORT_SUSPENDED bit in the tty_port::iflags field. Introduce helpers
tty_port_set_suspended() and tty_port_suspended() to abstract
atomic bit ops.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 4254dfb12fb1..7ac5add66c00 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -597,6 +597,19 @@ static inline void tty_port_set_check_carrier(struct tty_port *port, bool val) clear_bit(TTY_PORT_CHECK_CD, &port->iflags); } +static inline bool tty_port_suspended(struct tty_port *port) +{ + return test_bit(TTY_PORT_SUSPENDED, &port->iflags); +} + +static inline void tty_port_set_suspended(struct tty_port *port, bool val) +{ + if (val) + set_bit(TTY_PORT_SUSPENDED, &port->iflags); + else + clear_bit(TTY_PORT_SUSPENDED, &port->iflags); +} + extern struct tty_struct *tty_port_tty_get(struct tty_port *port); extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty); extern int tty_port_carrier_raised(struct tty_port *port); |